|
|
|
Last Modified: 9-16-2014 6.6 C Doc ID: RM000000W860ELX Model Year: 2015 Model: Tundra Prod Date Range: [08/2014 - ] Title: A760F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISSION SYSTEM: P0973,P0974; Shift Solenoid "A" Control Circuit Low (Shift Solenoid Valve S1); 2015 MY Tundra [08/2014 - ] DTC P0973 Shift Solenoid "A" Control Circuit Low (Shift Solenoid Valve S1) DTC P0974 Shift Solenoid "A" Control Circuit High (Shift Solenoid Valve S1) DESCRIPTION solenoid valves, the ECM controls the remaining normal shift solenoid valves to allow the vehicle to be operated safely. Also, the ECM stops sending current to the open or short-circuited solenoid
. DTC CODE DTC DETECTION CONDITION TROUBLE AREA P0973 ECM detects a short in the solenoid valve S1 circuit 2 times when solenoid valve S1 is operated (1-trip detection logic). Short in shift solenoid valve S1 circuit Shift solenoid valve S1 ECM P0974 ECM detects an open in the solenoid valve S1 circuit 2 times when solenoid valve S1 is not operated (1-trip detection logic). Open in shift solenoid valve S1 circuit Shift solenoid valve S1 ECM MONITOR DESCRIPTION These DTCs indicate an open or short in the shift solenoid valve S1 circuit. When there is an open or short circuit in any shift solenoid valve circuit, the ECM detects the problem, illuminates the MIL and stores the DTC. When the shift solenoid valve S1 is ON, if its resistance is 8 Ω or less, the ECM determines there is a short in the shift solenoid valve S1 circuit. When the shift solenoid valve S1 is OFF, if its resistance is 100 kΩ or more, the ECM determines there is an open in the shift solenoid valve S1 circuit
. MONITOR STRATEGY Related DTCs P0973: Shift solenoid valve S1/Range check (Low resistance) P0974: Shift solenoid valve S1/Range check (High resistance) Required sensors/Components Shift solenoid valve S1 A760F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISS... |